Data Summary
The data from each satellite are stored in separate files and directories, by satellite. DORIS data are organized in subdirectories by:
- File content (multi-day files, daily files)
- Satellite
- Year
DORIS Data Holdings
DORIS Product Holdings
Spatial coverage
Temporal coverage
- Multi-day files from 1990 through present
- Daily data files from 2008 through present
- Coverage: satellite dependent
Data Volume
- DORIS data in multi-day files: ~3-7 Mbytes/satellite/cycle (compressed)
- DORIS data in daily files: ~2 Mbytes/satellite/day (compressed)
Data Formats
- DORIS data in multi-day files: DORIS internal format
- DORIS data in daily files: Receiver Independent Exchange (RINEX) format
DORIS data are available from the CDDIS in subdirectories by satellite and year (for RINEX data).
The starting directory for these files is: https://cddis.nasa.gov/archive/doris/data/
Append the following directory and file names to the starting directory:
SAT/SATdata###.VVV.Z (multi-day files)
SAT/YYYY/SATrxYYDDD.VVV.Z (RINEX files)
as described in the table below.
| Code | Meaning |
|---|---|
| SAT | 3-character satellite code |
| YYYY | 4-digit year |
| DDD | 3-digit day of year |
| ### | 3-digit processing cycle number |
| VVV | 3-digit data version number |
| .Z | Unix compressed file |
DORIS Quaternion Files
DOI: 10.5067/DORIS/DORIS_IDSQUAT_001
Satellite quaternion files used to represent the satellite's attitude are available for selected satellites equipped with DORIS receivers:
- Jason-1
- Jason-2
- Jason-3
- Saral
Two files are provided on a daily basis, one for the satellite bus and one for the solar panels.
The starting directory for these files is: https://cddis.nasa.gov/archive/doris/ancillary/quaternions/
Append the following directory and file names to the starting directory:
sssqbodyYYYYMMDDHHMMSS_yyyymmddhhmnss.LLL
sssqsolpYYYYMMDDHHMMSS_yyyymmddhhmnss.LLL
as described in the table below.
| Code | Meaning |
|---|---|
| sss | 3-character satellite code |
| qbody or qsolp | fixed part (qbody for body quaternions, qsolp (if any) for solar panel quaternions) |
| YYYY | date: year of first data |
| MM | date: month of the first data |
| DD | date: day in the month of first data |
| HH | time: hour of the first data |
| MM | time: minute of the first data |
| SS | time: second of the first data |
| yyyy | date: year of last data |
| mm | date: month of the last data |
| dd | date: day in the month of last data |
| hh | time: hour of the last data |
| mn | time: minute of the last data |
| ss | time: second of the last data |
| LLL | version number (starting with 001 for the initial version) |